COURSE: Data Mining and Data Warehousing

Suppose that a data warehouse consists of the three dimensions time, doctor, and patient, and the two measures count and charge, where charge is the fee that a doctor charges a patient for a visit.

Enumerate three classes of schemas that are popularly used for modeling data warehouses and Draw the star schema diagram for the above data warehouse and label it with proper dimension name(s) and measures.

I DON'T PREFERR HAND WRITING AND PICTURES